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---
format: rst
toc: no
...

==================
BASH
==================

Job Control
    The syntax for "job number" or "JOBSPEC" (when using ``kill`` or similar) is ``%4`` or ``%5``.

Startup
-------
``bash`` by default takes a very long time to initialize because the
auto-completion scripts are loaded multiple times; disable this in
``~/.bashrc``?

Piping
---------
You can pipe both ``stdout`` and ``stderr`` together either to a file or two another command::

    grep --asdf >& /some/file
    grep --asdf |& less

Network Access
----------------
You can directly access network sockets as if they were files from bash using
the virtual devices ``/dev/tcp/HOSTNAME/PORT`` and ``/dev/udp/HOSTNAME/PORT``.

printf
------
The ``printf`` command is much more powerful than "echo".